Separation anxiety is normal in a young child, and most of it is gone by around age three. It only becomes separation anxiety disorder when the fear is out of proportion for the child’s age, lasts for at least four weeks, and gets in the way of school, sleep or friendships that would otherwise be fine.
This guide is about children specifically. The condition can also show up for the first time in adulthood, usually centred on a partner rather than a parent, and that version is different enough in who it involves and how it is missed that it gets its own guide.
What counts as normal separation anxiety
Normal separation anxiety is a young child’s distress at a parent leaving, and on its own it is not a sign that anything is wrong. It usually means the opposite: the child has formed a clear attachment and has not yet fully grasped that a parent who is out of sight still exists and is coming back.
This typically starts around eight months old, peaks somewhere in the second year, and eases off through the toddler years as the child’s sense of time and object permanence develops. By around age three, most children can tolerate a parent leaving for nursery, a class, or an evening out with some reassurance and a routine goodbye. A wobble at drop-off after an illness, a new sibling, or a house move is common and usually settles within a couple of weeks.
When separation anxiety becomes a disorder
The line is not how upset the child looks in the moment. It is duration, spread and cost: the fear has to be excessive for the child’s developmental stage, has to persist for at least four weeks, and has to be causing real distress or getting in the way of things like school, sleep or friendships, rather than showing up only around one specific event.
Separation anxiety disorder affects around four in every hundred children at some point. [kossowsky-2013-separation] It does not always stay in childhood, either. In the same analysis, just over a third of children with the disorder were still dealing with it as adults, and separately, a large share of adults who have separation anxiety disorder developed it fresh in adulthood with no childhood history at all. [kossowsky-2013-separation] If persistent separation anxiety in an adult sounds more like your situation, or a partner’s, our guide to separation anxiety in adults covers that version, including why it so often gets mistaken for clinginess or a relationship problem rather than named for what it is.
What separation anxiety disorder looks like day to day
Separation anxiety disorder looks like ordinary worry taken further: real distress at separations, physical complaints clustering around them, and refusal to do things the child previously managed without difficulty. The specific pattern is usually recognisable once it is named:
- Repeated, disproportionate distress when a separation is about to happen or is happening, well beyond a brief protest.
- Persistent worry that something bad will happen to a parent, or to the child themselves, that will keep them apart for good.
- Refusing to go to school, sleep away from home, or be in a room alone, when they previously managed this without difficulty.
- Nightmares with separation themes, and reluctance to fall asleep without a parent nearby.
- Physical complaints such as stomach aches or headaches that cluster specifically around separations, particularly school mornings.
None of this means a parent has done anything wrong. It means the child’s fear response has attached itself to ordinary, safe separations, and the fix is not more reassurance in the moment but practice that shows the child, through experience rather than argument, that the separation is survivable.
Practising short separations
Practising short separations, planned in advance and lengthened gradually, is the central technique in the cognitive behavioural therapy recommended for children with anxiety disorders, including separation anxiety disorder. [walter-2020-aacap-anxiety] The idea is straightforward even though it takes patience: start with a separation short enough that the child manages it without becoming overwhelmed, let the anxiety rise and then fall on its own, and only then make the next one slightly longer.
A parent stepping into another room, or out to the car, for a fixed and announced length of time is a real, literal version of this that can start today. The timer below is set up for exactly that: pick a length, tell the child how long it will be and that you will come back when it rings, and treat completing it, not feeling calm during it, as the win.
Try it now: a short practice separation
Pick a length that feels almost too easy. The goal on the first attempt is a successful separation, not a comfortable one, and success is what gets built on.
1:00
Tell your child exactly how long you will be gone and that you will come back the moment the timer sounds. Leave calmly, without lingering at the door. If they are distressed when you return, acknowledge it briefly and move on to something ordinary rather than a long debrief.
Done. That separation counts, whatever it looked like.
Once a length is comfortable across a few tries on different days, move up. The exact numbers matter less than the direction: shorter and more frequent successes build confidence faster than one long separation attempted too early, which risks a distressing failure that makes the next attempt harder rather than easier.
What to describe to a doctor
For a parent or carer. This does not diagnose anything and nothing you enter is stored or sent anywhere. It turns a general worry into the specific details that make a short appointment useful.
0 of 7 ticked
This meets the duration, spread and impact criteria at once. Ask for an assessment by name rather than a general check-up.
Enough of the pattern to describe specifically rather than wait out. Bring these details rather than a general sense that things are hard.
Little of this pattern is present. Keep an eye on it and revisit if things change or persist.
Is there a test for separation anxiety in children?
No. Nothing on this site, and no self-report screener we are aware of, has been validated for young children. The instruments used for adult anxiety, including the anxiety screener on this site, ask an adult to rate their own worry over the past couple of weeks, which assumes a level of self-report a young child cannot reliably give about themselves.
A diagnosis in a child is made by watching the pattern over time, and by talking to the child and the adults around them, not by a questionnaire. Our self-assessment hub lists everything available on this site, and it exists for adults, and for the adults caring for a child under strain, rather than as a stand-in for assessing the child directly.
When to seek help
Speak to a doctor if the pattern has lasted a month or more, shows up in more than one setting, and is stopping your child doing things they used to manage: attending school, sleeping in their own bed, or spending time away from you. A change that has happened suddenly and stayed, after a specific event or with no obvious cause, is also worth raising even before the four-week mark.
Seek help promptly rather than waiting if your child refuses to eat or drink because of separation fears, if school refusal has become complete rather than occasional, or if you are worried about their safety in any other way. If you are in crisis, contact your local emergency services or a crisis helpline.
How MyFreud can help
MyFreud is not built for children, and nothing here replaces an assessment. What it can do is help the adult managing this: tracking how a difficult stretch changes over weeks rather than relying on memory, which is exactly the kind of pattern that turns a vague “it’s been rough lately” into the specific detail a doctor can act on.
Download MyFreud and start today: App Store or Google Play.